Spaarneborghhaven, operated by W. S. V. Van Merlenhaven, is a small, quiet marina in Heemstede, Noord-Holland, situated on the Zuider Buiten-Spaarne just before the first bridge into Haarlem.

It lies along the staande mastroute connecting the Zeeland waters with the IJsselmeer, making it a well-known and convenient stop for cruising boaters. The harbor has 25 berths with a maximum vessel length of 20 meters and a maximum draft of 1. 5–2 meters.

The setting is pleasantly rural, with water and shore power connections and WiFi available. A Chinese restaurant is immediately adjacent, shops and a bus stop are within walking distance, and the center of Heemstede is about a 15-minute walk away.

Museum de Cruquius and the shopping center Schalkwijk are reachable by bicycle. Haarlem is easily accessible by bike or bus.